Potassium sulfide represented by the chemistry formula K2S is a compound of potassium and sulfur the is moderately dissolve in mountain <1>. The is deliquescent and also may spontaneously ignite in air. It is a reduce agent and an ionic link <4>.
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Potassium Sulfide Identification
|CAS Number||1312-73-8 <1>|
|PubChem CID||20072150 <3>|
|ChemSpider ID||142491 <2>|
|EC Number||215-197-0 <1>|
Composition and also Synthesis
Potassium sulfide deserve to be all set by first treating potassium hydroxide to excess hydrogen sulfide to type potassium hydrosulfide (KHS). Further treatment that KHS v the exact same amount the potassium hydroxide generates potassium sulfide <9>.
KOH + H2S = KHS + H2O
Potassium Sulfide Formula
Properties and Characteristics that Potassium Sulfide
|Molar mass/molecular weight||71.158 g/mol <3>|
|Color/appearance||White come yellow powder <4>|
|Melting point/freezing point||840°C, 1544°F <1>|
|Boiling point||912°C, 1674°F <1>|
|Density||1.80 g cm-3 <1>|
|State of matter at room temperature (normal phase)||Solid <1>|
|Solubility in water||N/A <1>|
|pH||>7 (basic) <5>|
|Crystal structure||Tetrahedral <6>|
Potassium Sulfide Structure
Lewis Dot structure for Potassium Sulfide
Prominent reactions of K2S
Potassium sulfide reacts through cobalt iii bromide to develop cobalt iii sulfide and also potassium bromide <10>.
3K2S + 2CoBr3 = Co2S3 + 6KBr
Potassium sulfide reacts v dilute hydrochloric mountain to create potassium chloride and also hydrogen sulfide <11>.
K2S + 2HCl = 2 KCl + H2S
It reaction with focused sulfuric acid to give potassium bisulfate, sulfur dioxide, sulfur and water <13>
K2S + 3H2SO4 = 2KHSO4 + SO2 + S + 2H20
The link reacts v silver nitrate to type aqueous potassium nitrate and silver sulfide precipitate <12>.
K2S + 2AgNO3 = 2KNO3 + Ag2S
Potassium Sulfide UsesIn pyrotechnics <7>.As a reagent in analysis chemistry <4>.As a depilatory and medicine <4>.
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Is that Dangerous
It may reason a fire hazard, for this reason precautions need to be taken no to lug it in call with air. In the type of flour or dust, it is explosive. Ingestion, inhalation and skin call may an outcome in significant injury and also even death. It likewise harmfully affects the eyes and skin causing eye damage and also skin burns. Thus all contact should it is in avoided. That emits toxicity fumes if heated to decomposition <4>. That is that a corrosive nature and poisonous because that the environment <8>.